Effects of boron on the fracture behavior and ductility of cast Ti-6Al-4V alloys

J. H. Luan; Zengbao Jiao; L. Heatherly; E. P. George; G. Chen; C. T. Liu

doi:10.1016/j.scriptamat.2014.12.022

Effects of boron on the fracture behavior and ductility of cast Ti-6Al-4V alloys

J. H. Luan, Zengbao Jiao, L. Heatherly, E. P. George, G. Chen, C. T. Liu

Research output: Journal article publication › Journal article › Academic research › peer-review

29 Citations (Scopus)

Abstract

Minor amounts of boron additions have been found to greatly enhance the ductility of cast Ti-6Al-4V alloys, which was considered to be due to the grain-size refinement. In this paper, we report our interesting finding that the beneficial effect of boron on the ductility of the cast titanium alloys is due not only to the grain-size refinement but the enhancement of the prior-β grain-boundary cohesion by boron segregation at the grain boundaries, as evidenced by Auger electron microscopy.

Original language	English
Pages (from-to)	90-93
Number of pages	4
Journal	Scripta Materialia
Volume	100
DOIs	https://doi.org/10.1016/j.scriptamat.2014.12.022
Publication status	Published - 1 Jan 2015
Externally published	Yes

Keywords

Auger electron spectroscopy
Ductility
Fracture
Grain boundary segregation
Ti-6Al-4V alloy

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics

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10.1016/j.scriptamat.2014.12.022

Cite this

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abstract = "Minor amounts of boron additions have been found to greatly enhance the ductility of cast Ti-6Al-4V alloys, which was considered to be due to the grain-size refinement. In this paper, we report our interesting finding that the beneficial effect of boron on the ductility of the cast titanium alloys is due not only to the grain-size refinement but the enhancement of the prior-β grain-boundary cohesion by boron segregation at the grain boundaries, as evidenced by Auger electron microscopy.",

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AU - Luan, J. H.

AU - Jiao, Zengbao

AU - Heatherly, L.

AU - George, E. P.

AU - Chen, G.

AU - Liu, C. T.

PY - 2015/1/1

Y1 - 2015/1/1

N2 - Minor amounts of boron additions have been found to greatly enhance the ductility of cast Ti-6Al-4V alloys, which was considered to be due to the grain-size refinement. In this paper, we report our interesting finding that the beneficial effect of boron on the ductility of the cast titanium alloys is due not only to the grain-size refinement but the enhancement of the prior-β grain-boundary cohesion by boron segregation at the grain boundaries, as evidenced by Auger electron microscopy.

AB - Minor amounts of boron additions have been found to greatly enhance the ductility of cast Ti-6Al-4V alloys, which was considered to be due to the grain-size refinement. In this paper, we report our interesting finding that the beneficial effect of boron on the ductility of the cast titanium alloys is due not only to the grain-size refinement but the enhancement of the prior-β grain-boundary cohesion by boron segregation at the grain boundaries, as evidenced by Auger electron microscopy.

KW - Auger electron spectroscopy

KW - Ductility

KW - Fracture

KW - Grain boundary segregation

KW - Ti-6Al-4V alloy

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DO - 10.1016/j.scriptamat.2014.12.022

M3 - Journal article

SN - 1359-6462

VL - 100

SP - 90

EP - 93

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Effects of boron on the fracture behavior and ductility of cast Ti-6Al-4V alloys

Abstract

Keywords

ASJC Scopus subject areas

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